| Grundy County Historical SocietyMorris | Form 990 | $266,782FY2026 |
| Frankfort Square Baseball LeagueFrankfort | Form 990 | $266,608FY2025 |
| Achievement Center Endowment Fund IncMonmouth | Form 990 | $265,712FY2025 |
| Lupus Society of IllinoisChicago | Form 990 | $265,244FY2025 |
| Three Rivers Festival Foundation Inc NFPChannahon | Form 990 | $264,192FY2025 |
| Skokie Country Club Educational FoundationWinnetka | Form 990 | $263,887FY2025 |
| American Academy for Oral Systemic Health CorpSpringfield | Form 990 | $263,672FY2024 |
| Metropolitan Housing Development CorporationChicago | Form 990 | $262,349FY2025 |
| Hersey Instrumental Assn IncArlington Heights | Form 990 | $262,254FY2025 |
| Village of Progress Foundation IncOregon | Form 990 | $262,201FY2025 |
| Crsi Education and Research FoundationSchaumburg | Form 990 | $262,046FY2024 |
| Mokena Youth Athletic AssociationMokena | Form 990 | $261,840FY2025 |
| Demolay InternationalEast Moline | Form 990 | $261,821FY2025 |
| Wheaton Drama IncWheaton | Form 990 | $260,426FY2025 |
| Putnam County Achievement ServicesStandard | Form 990 | $260,356FY2025 |
| Oak Park Festival TheatreOak Park | Form 990 | $259,963FY2024 |
| Dark Horse Dogs NFPChicago | Form 990 | $259,465FY2024 |
| Lemont Hornets Youth Football Association IncLemont | Form 990 | $257,361FY2025 |
| Illinois Congress of Parents TeachersNorthbrook | Form 990 | $256,299FY2025 |
| Dr Groves B Smith Guardianship CorporationGillespie | Form 990 | $256,269FY2026 |
| Evening Star Childcare Service NFPChicago | Form 990 | $256,194FY2025 |
| Mendelssohn ClubRockford | Form 990 | $256,097FY2026 |
| The International Society of Gynecological PathologistsChicago | Form 990 | $255,706FY2025 |
| Outreach Community Services IncCarol Stream | Form 990 | $255,484FY2025 |
| Chicago Master SingersBarrington | Form 990 | $252,798FY2025 |
| Asian American Chamber of Commerce of IllinoisChicago | Form 990 | $252,666FY2025 |
| Abraham Lincoln Elementary School- Music Association IncChicago | Form 990 | $252,412FY2025 |
| Ottawa Township High School District 140 EducationalOttawa | Form 990 | $250,634FY2025 |
| Almost Home Child Care IncLitchfield | Form 990 | $250,199FY2025 |
| I Am a Gentleman IncChicago | Form 990 | $250,091FY2024 |
| Lake Zurich Flames Junior FootballLake Zurich | Form 990 | $250,070FY2024 |
| Market Street Music ConservatoryMarion | Form 990 | $249,358FY2025 |
| Little League Baseball IncLa Grange | Form 990 | $249,061FY2025 |
| Variety the Childrens Charity of IllinoisDowners Grove | Form 990 | $247,788FY2025 |
| Mizrachi-Hapoel Hamizrachi of Chgo Religious Zionists of ChicagoSkokie | Form 990 | $247,509FY2025 |
| Vinebranch IncWest Chicago | Form 990 | $247,247FY2025 |
| Macomb Area Industrial Development CorporationMacomb | Form 990 | $246,808FY2025 |
| Chicago Maritime MuseumChicago | Form 990 | $246,707FY2025 |
| Lasalle County Historical SocietyUtica | Form 990 | $245,353FY2025 |
| Musicians Club of WomenChicago | Form 990 | $245,183FY2025 |
| Madison County Historical Society IncEdwardsville | Form 990 | $244,726FY2025 |
| Millstadt Union Fire DepartmentMillstadt | Form 990 | $243,997FY2025 |
| Rebild National Park Society IncHoffman Estates | Form 990 | $243,927FY2024 |
| Metropolitan Housing Development CorporationChicago | Form 990 | $243,452FY2025 |
| Illinois Congress of Parents TeachersNorthbrook | Form 990 | $241,248FY2025 |
| Proclaiming the Truth IncLisle | Form 990 | $240,479FY2025 |
| Association for Comm Excellence in Agriculture Natural Resources andPark Ridge | Form 990 | $240,372FY2025 |
| Kankakee Symphony Orchestra AssociationKankakee | Form 990 | $239,080FY2025 |
| American Association for Therapeutic HumorRockford | Form 990 | $239,020FY2025 |
| The Columbian Club Charitable FoundationRoselle | Form 990 | $238,153FY2024 |